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Improvement of Absorption Performances of Superabsorbent Hydrogel Nanocomposites Using Clay Mineral

  • Kim, Dong Hyun (Department of Human Convergence Technology Group, Korea Institute of Industrial Technology (KITECH))
  • Received : 2019.06.21
  • Accepted : 2019.07.23
  • Published : 2019.09.30

Abstract

Superabsorbent hydrogel (SAH) is a lightly crosslinked hydrophilic functional polymer material comprising a flexible chain structure, which can absorb and retain high amounts of water or aqueous fluids even under high pressure. Therefore, it is important to improve their characteristics such as absorption performance, residual monomer content, and water permeability. SAH nanocomposites were prepared using clay mineral as an inorganic filler and the influence of post-treatment processes such as quenching and aging process on their properties was studied. In addition, surface-crosslinking process was applied to improve the absorption performance associated with mechanical properties and water permeability. The structure of the SAH was characterized using attenuated total reflectance Fourier transform infrared spectroscopy, X-ray diffraction analysis, and scanning electron microscopy.

Acknowledgement

Supported by : Ministry of Trade, Industry and Energy

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